GB1260900A - Rotary positive-displacement hydraulic motors - Google Patents
Rotary positive-displacement hydraulic motorsInfo
- Publication number
- GB1260900A GB1260900A GB50749/69A GB5074969A GB1260900A GB 1260900 A GB1260900 A GB 1260900A GB 50749/69 A GB50749/69 A GB 50749/69A GB 5074969 A GB5074969 A GB 5074969A GB 1260900 A GB1260900 A GB 1260900A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- cylinder
- blade
- conduits
- abutment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000006073 displacement reaction Methods 0.000 title abstract 3
- 239000012530 fluid Substances 0.000 abstract 2
- 238000013459 approach Methods 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/12—Characterised by the construction of the motor unit of the oscillating-vane or curved-cylinder type
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
- Wind Motors (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
1,260,900. Rotary positive-displacement motors. CHARBONNAGES DE FRANCE. Oct. 15, 1969 [Oct. 15, 1968], No.50749/69. Heading F1F. A hydraulic motor producing a high torque has a housing 5 containing rotatable cylinders 2a, 2b circumjacent a rotary shaft 1 and comprising abutments 3a, 3b that co-operate with blades 4a, 4b, respectively, on the shaft. Walls 5a, 5b can be deflected by fluid-pressure in annular chambers C 3 a , C 3 b to lock the cylinders. Conduits 10, 11, 20, 21 for hydraulic fluid are formed in the shaft, Figs. 1b and 1c (not shown), and communicate with chamber C 1 a , C 2 a , C 1 b , C 2 b between the blades and the abutments. Hydraulically actuated valves HV1, HV2, HV3 connect the chambers to series connected pumps PP, PG or a tank D, these valves being controlled by a vane HVO, which is actuated by mechanism FC1 on each abutment when engaged by the respective blade. Pressure-limiting devices 18, 19, 26 and a non- return valve 27 are provided as shown. When the valves are set as shown the cylinder 2a is locked and the cylinder 2b is free to rotate with its abutment ahead of the blade 4b as the shaft undergoes angular displacement by the blade 4a, the angular velocity of the cylinder 2b being initially at least twice that of the shaft owing to the chamber C 2 b being charged simultaneously by the pump PG and fluid transfered from the chamber C 2 a . The cylinder 2b revolves at the same velocity as the shaft when its abutment engages with the trailing side of the blade 4b. When the blade 4a approaches the abutment 3a the valve HVO is operated so that the settings of the valves HV1, HV2, HV3 are reversed. Rotation of the shaft thus continues while the cylinder 2b is locked and the cylinder 2a is released. The motor may have more than two cylinders. In another embodiment, Figs. 4 to 6e (not shown), the conduits 20, 21 are replaced by conduits connected to the conduits 11, 10, respectively, the device 26 and valve 27 are dispensed with, and the cylinders are connected to each other and the shaft by differential gears. The mode of operation is generally similar to that of the embodiment shown saving that the gears transmit torque from the unlocked cylinder to the shaft, the torque output being thereby increased.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR170022 | 1968-10-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1260900A true GB1260900A (en) | 1972-01-19 |
Family
ID=8655686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB50749/69A Expired GB1260900A (en) | 1968-10-15 | 1969-10-15 | Rotary positive-displacement hydraulic motors |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3670627A (en) |
| BE (1) | BE740097A (en) |
| DE (1) | DE1952046A1 (en) |
| FR (1) | FR1591645A (en) |
| GB (1) | GB1260900A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4759186A (en) * | 1985-12-26 | 1988-07-26 | Sundstrand Corporation | Self-powered rotary actuator utilizing rotation-generated centrifugal head |
| JP3612379B2 (en) * | 1996-04-10 | 2005-01-19 | 三菱自動車工業株式会社 | Variable valve mechanism drive device and hydraulic actuator |
| FR2958981B1 (en) * | 2010-04-15 | 2012-08-24 | Messier Dowty Sa | ELECTROMECHANICAL ACTUATOR WITH HYDRAULIC REGULATION, AND LIGHTER EQUIPPED WITH SUCH ACTUATOR FOR ITS MANEUVER |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1019687A (en) * | 1963-10-03 | 1966-02-09 | Bergens Mek Verksted | Arrangement for pivoting the derrick or extension arm in a crane, especially a ship's crane |
-
1968
- 1968-10-15 FR FR170022A patent/FR1591645A/fr not_active Expired
-
1969
- 1969-10-10 BE BE740097D patent/BE740097A/xx unknown
- 1969-10-13 US US865918A patent/US3670627A/en not_active Expired - Lifetime
- 1969-10-15 GB GB50749/69A patent/GB1260900A/en not_active Expired
- 1969-10-15 DE DE19691952046 patent/DE1952046A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1952046A1 (en) | 1970-04-16 |
| US3670627A (en) | 1972-06-20 |
| BE740097A (en) | 1970-04-10 |
| FR1591645A (en) | 1970-05-04 |
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